I spoke to a person who owns a ICU hospital in NY. He said that only 14% of pts on ventilation survive and the most of survivals are permanently damaged. Consequently, his advice: treatment must be started ASAP except for pts with none-to-low risk factors.
The studies are small but so far the survival rate is higher that 14% but still low.
The largest study so far to look at mortality among coronavirus patients on ventilators was done by the Intensive Care National Audit & Research Centre in London. It found that among 98 ventilated patients in the U.K., just 33 were discharged alive.
The numbers from a study of Wuhan, China, are even grimmer. Only 3 of 22 ventilated patients survived.
And a study of 18 ventilated patients in Washington state found that nine were still alive when the study ended, but only six had recovered enough to breathe on their own.